Latest Melco firmware allows Twonky switch off

[suffolk tony]

I've downloaded the beta firmware from the Melco site, unzipped it, but then the files revealed don't include the updater.bin file as mentioned in the Melco update instructions. I've tried inserting a USB with the files downloaded, including an unzipped version, but the Melco doesn't recognise them. Grateful for any help please! Is it because I've downloaded on a Mac?